You will walk a ton on this mission! Often on rocky, bumpy roads. Bring shoes (2-3 pairs) that are sturdy, with thick soles because you wear them out.
Ankle rain boots with insoles are nice to have as well. Blundstone and Docs recommended.
Bring a nice shoulder bag that will be comfy to carry on long days. You will also want a backpack for transfers and exchanges.
There are a lot of mosquitoes. Use bug repellent.
Sisters: pants help with mosquitoes.
You hand wash clothing and line dry it.
A longer coat is pretty nice for warmth.
You will need a light rain jacket as well.
A filtered water bottle with extra filters is highly recommended.
Have a suggestion or correction for the Argentina Santa Fe Mission? Submit it here.
Most parents send their Elders with at least 1 suit (most countries in South America only wear suits to church and meetings) and around 8–10 golf pants. Families are sending more shirts because of heat and humidity — 12–14 is the average. Note for Sisters serving in Brazil: feminine hygiene products are expensive there and tampons are often considered taboo. Be prepared to send a good supply with your Sister Missionary.
Serve shirts have a ventilation panel in the side of the shirt making them noticeably more breathable. Missionaries serving in hot or humid places absolutely RAVE about this feature. The most popular shirt for hot-climate missions, for sure.